Question

11. Efectuează calculele:
DAU COROANA

Answer 1

Răspuns:

a) =0,6*55 + $( \frac{26}{5} )^{2} * 5^{3}$=

$33+ 26^{2} * 5$=

$33+ 676*5$=

$33+ 3380= 3413$

b) =$(\frac{27^{2} }{10^{2} } +\frac{9^{3} }{10^{3} } * 10^{2} ) * \frac{3}{10} =$

$\frac{27^{2} +9^{3} *10}{10^{2} } * \frac{3}{10} =$

$\frac{729+ 7290}{100} * \frac{3}{10}$=

$\frac{8019*3}{1000}$= 24,057

c) =$[\frac{81}{25} - (\frac{289}{100} - \frac{225}{100} ) :8 :0,2]:7,1=$

$(\frac{81}{25} - \frac{64}{100} * \frac{1}{8} :0,2):7,1=$

$(\frac{81}{25} - \frac{8}{100} *\frac{2}{10} ):7,1=$

$(\frac{81}{25} - \frac{64}{1000} ): 7,1=$

$\frac{81*40-64}{1000} *\frac{71}{10}=$

$\frac{225*496}{10000} = 22,54$

d) =$\frac{58}{10} *\frac{1}{2} - \frac{36}{25}=$

$\frac{29}{10} -\frac{36}{25} =$

$\frac{29*5-36*2}{50} =\\\frac{145-72}{50} =\\\frac{73}{50} = 1,46$

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